<!DOCTYPE html>
<html lang="en">
<head>
	<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
	<script src="https://how2j.cn/study/js/jquery/2.0.0/jquery.min.js"></script>
	<link href="https://how2j.cn/study/css/bootstrap/3.3.6/bootstrap.min.css" rel="stylesheet">
	<script src="https://how2j.cn/study/js/bootstrap/3.3.6/bootstrap.min.js"></script>
	<style>
		div.imgAndInfo{
			margin: 40px 20px;
		}
		div.imgInimgAndInfo{
			width: 400px;
			float: left;
		}
		div.imgAndInfo img.bigImg{
			width: 400px;
			height: 400px;
			padding: 20px;
			border: 1px solid #F2F2F2;
		}
		div.imgAndInfo div.smallImageDiv{
			width: 80%;
			margin: 20px auto;
		}
		div.imgAndInfo img.smallImage{
			width: 60px;
			height: 60px;
			border: 2px solid white;
		}
		div.imgAndInfo img.smallImage:hover{
			border: 2px solid black;
		}
	</style>
	<script>
		$(function () {
		    $("img.smallImage").mouseenter(function () {
		        var bigImageURL = $(this).attr("bigImageURL");
		        $("img.bigImg").attr("src", bigImageURL);
            });
            $("img.bigImg").load(
                function(){
                    $("img.smallImage").each(function(){
                        var bigImageURL = $(this).attr("bigImageURL");
                        img = new Image();
                        img.src = bigImageURL;
                        img.onload = function(){
                            console.log(bigImageURL);
                            $("div.img4load").append($(img));
                        };
                    });
                }
            );
        });
	</script>
</head>
<body>
	<div class="imgAndInfo">
		<div class="imgInimgAndInfo">
			<img  width="100px" class="bigImg" src="https://how2j.cn/tmall/img/productSingle/8619.jpg">
			<div class="smallImageDiv">
				<img  width="100px" class="smallImage"  src="https://how2j.cn/tmall/img/productSingle_small/8620.jpg" bigImageURL="https://how2j.cn/tmall/img/productSingle/8620.jpg">
				<img  width="100px" class="smallImage" src="https://how2j.cn/tmall/img/productSingle_small/8619.jpg" bigImageURL="https://how2j.cn/tmall/img/productSingle/8619.jpg">
				<img  width="100px" class="smallImage" src="https://how2j.cn/tmall/img/productSingle_small/8618.jpg" bigImageURL="https://how2j.cn/tmall/img/productSingle/8618.jpg">
				<img  width="100px" class="smallImage" src="https://how2j.cn/tmall/img/productSingle_small/8617.jpg" bigImageURL="https://how2j.cn/tmall/img/productSingle/8617.jpg">
				<img  width="100px" class="smallImage" src="https://how2j.cn/tmall/img/productSingle_small/8616.jpg" bigImageURL="https://how2j.cn/tmall/img/productSingle/8616.jpg">
			</div>
			<div class="img4load hidden" ></div>
		</div>
		<div style="clear:both"></div>
	</div>
</body>
</html>